The law of segregation gives genotypic ratio in F2 as:
Correct answer: C. 3 : 1
- A. 2 : 1
- B. 4 : 1
- C. 3 : 1
- D. 1 : 2 : 1
Explanation
Mendel actually observed 3 ; 1 phenotypic ratio in F2. His phenotypic data of F3 can also be explained on the basis of 1 : 2 : 1 genotypic ratio of F2.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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